China’s population is projected to peak at slightly less than 1.4 billion in 2026, both earlier and at a lower level than previously projected. Meanwhile, India’s population is projected to surpass China’s population in 2025, according to new data being released by the U.S. Census Bureau.

The Census Bureau’s International Data Base includes projections by sex and age to 100-plus for 227 countries and other areas with populations of 5,000 or more and provides information on population size and growth, mortality, fertility and net migration.

These figures come from the population estimates and projections for 227 countries and areas released today through the Census Bureau’s International Data Base. This release includes revisions for 21 countries, including China.

The latest projections indicate that by 2026, the population of China will begin to decline. Population growth in China, the world’s most populous country, is slowing and currently stands at 0.5 percent annually. China surpassed the 1.2 billion population mark in 1994 and reached 1.3 billion in 2006.

According to the latest revisions, India is projected to become the world’s most populous country in 2025. The population growth rate in India currently is about 1.4 percent, nearly three times that of China. The difference in the growth rate between the two countries is explained by fertility. India’s total fertility rate — the number of births a woman is expected to have in her lifetime — is currently estimated at 2.7 and projected to decline slowly, and that is driving population growth in the country.